40151590660 has 12 divisors (see below), whose sum is σ = 84318340428. Its totient is φ = 16060636256.

The previous prime is 40151590553. The next prime is 40151590673. The reversal of 40151590660 is 6609515104.

It can be written as a sum of positive squares in 2 ways, for example, as 15085734976 + 25065855684 = 122824^2 + 158322^2 .

It is a super-2 number, since 2×40151590660² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1003789747 + ... + 1003789786.

It is an arithmetic number, because the mean of its divisors is an integer number (7026528369).

Almost surely, 2^40151590660 is an apocalyptic number.

It is an amenable number.

40151590660 is an abundant number, since it is smaller than the sum of its proper divisors (44166749768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40151590660 is a wasteful number, since it uses less digits than its factorization.

40151590660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2007579542 (or 2007579540 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 37.

The spelling of 40151590660 in words is "forty billion, one hundred fifty-one million, five hundred ninety thousand, six hundred sixty".